Improvement in fire-boxes for cooking-stoves



w. TNSLEY. Fire-Boxes for Cooking-Sinves Patented March 24 Fi gli.

vliz/vena?? `UNITED STATES PATENT 0FFICE.

TILLIAM TINSLEY, OF SYRACUSE, YORK.

IMPROVEMENT IN FIRE-BOXES FOR COOKING-STOVES.

Specification forming part of Letters Patent No. 148,860, dated March 24, 1,874; application led May 14, 1873.

To all whom it may concern Be it known that I, WILLIAM TINsLEY, of Syracuse, New York, have invented an linproved Fire-Box for Cooking-Stoves, of which the following is a specification:

The object of my invention is to prevent the focal concentration ofthe fire upon the center-piece and to spread the fire more evenly under the pots and over the oven. Mytdevice relates to the back of the tire-box only.

My nre-box forms a wavy line at the top. The end portions B B extend from the jambs about one-third of the whole toward the middle, and then break laterally into a saddle shaped double curve in the center A. The ends B B slope backward from the grate, as is common; but the apex of A is vertical, or nearly, from the grate. The top line B A B opens and breaks gradually into a right line, or the ordinary curve at the bottoni. A lineslip, S, commences at about the point of A, and runs along` the middle between the oven and top of the stove to the damper.

I cannot specify the exact forni of the side portions of the top line; or the angle of declension; neither the quantity of projection of theI middle portion A, as the intention is not so much to make a stove as to adapt it to other stoves, which may differ and require a modification.

The face of the fire-back may be iron or brick, or in part of both.

The operation is as follows: As tire will naturally seek the most advanced outlet, beL ing,` drawn by the smoke-pipe and chimney, the ire in my box is shed off by Iny Vertical center A into the more advanced and inclined sides B and B, where it resolves itself into two currents. The slip S now interposes between the two currents and keeps them apart until they reach the damper; or, when the damper is closed, into their respective side fines, thus spreadin the heat equally over the whole stove, and protecting the top plates from warping. v

Having thus described my invention, what Ivolailn, and desire to secure by Letters Patent, is-

1. A back plate, B A B, reclining backward at the sides B B, and projecting forward in the middle in a short saddle-shaped curve, A, which may be vertical, or nearly so, from the grate,

the whole forming1 a wavy line at the top, which opens and breaks down to the form of the grate at the bottom.

2. A flue-slip, S, runningI between the top of the oven and the top of the stove, in combif nation with the back plate B A B, substantially in the manner and for the purpose described.

May 9, 1873.

VILLIAM TINSLEY.

In presence of- G. W. SMITH, CLINTON SMITH. 

